Tag: biological diversity

Since the late 19th century the engineering professions have done a masterful job of ameliorating filth and spread of disease in our cities, including the provision of safe water supply, sanitary disposal of human waste and refuge, and… Read More

Studies in urban woodlands have found effects of improved immune system response, lowered stress indicators, reduced depression and lower glucose levels in diabetics. Increasing tree density, and resulting reduction in air pollution, has been shown to lower the… Read More